Combined Heat and Power CHP
Cooling with Absorption Chillers
7 KW- 19KW-24KW - 40KW - 120KW - 500KW - 1,000KW Natural Gas Generators
Diesel CoGen 8KW - 1800KW
Heavy Oil CoGen 500KW - 2500KW
Natural Gas Cogen 20KW - 10,000KW with 2.9 year payback in Alberta and BC( see analysis below )
Ask us about how you can get FREE System. email@example.comWSE engineers have over 30 years in designing and installing Cogeneration systems.
Gas Engines - Cogeneration Solutions
Cogeneration systems—also called combined heat and power (CHP) systems—are designed to generate both heat and power. WSE CHP systems use waste heat accrued during an engines operation to generate overall plant efficiencies of more than 90 percent. This efficient and economical method of energy conversion achieves primary energy savings of roughly 80 percent by using a gas engine cogeneration system instead of separate power and heat generation equipment. Transportation and distribution losses also are reduced or eliminated as the decentralized energy supply is aligned where it is needed.
WSE CHP is available in many configurations to provide power, heating and cooling on an economic and environmentally friendly basis. WSE has developed a standardized platform that can be customized to meet the needs of a particular site.
Features & Benefits
- Cogeneration systems generate both heat and power
- WSE CHP systems use waste heat from various sources to increase plant efficiency by up to 90 percent
- Cogeneration achieves 40 percent energy savings vs. separate power and heat generation equipment
- Reduces or eliminates transportation and distribution losses
- Addition of boiler system or other heat storage medium further increases operating time and efficiency
- Generated power is used by an individual facility or fed into a public power grid
- Thermal energy can be used to generate heating water and steam production, as well as for various types of process heat
- Cogeneration systems also can be used for CO2 fertilization in greenhouses and trigeneration systems.
WSE Cogeneration 120 Kilowatt Example:
- Estimated installed price of $250,000
- Generate $86,000 a year of savings and income
- Income and savings resulting in 2.9 year payback
- Full power and heat backup during Power outages
- Over $1.5 million revenue over the next 20 year life of the product.
- CHP can reduce the greenhouse gas (GHG) emissions normally associated with electricity and hot water production by as much as 50%.
Estimated Income and Savings in Alberta and BC for 120 Kilowatt WSE Natural Gas CHP Generator
Input costs based on gas usage at rated power is 32.5 cubic meters per hour
Current May 2013 Natural gas in Alberta and BC is $3.24 per Gigajoule or $.124 per cubic meter
Resulting in an operating cost of $4 per hour
Electrical Revenue based on 120 kilowatt per hour and $.10/ kilowatt Alberta Power Purchase Agreement
Electrical Revenue per hour $12.00 per hour
Net Revenue $12 - $4 = $8.00 per hour
8,765 hours in a year times $8
Electrical Revenue per year = $70,120
Heat recovery based available heat of 530,400 BTU per hr
Approximately 36,000 BTU in cubic meter with a cost of $.15
Heat Recovery per hour $1.83 with an annual savings $16,015
Total Electrical and Heat Recovery per year $86,135
Equipment cost and installation $250,000
ROI 2.9 Years
Cogeneration, also known as Combined Heat and Power, or CHP, is the production of electricity and heat in one single process for dual output streams. In conventional electricity generation 35% of the energy potential contained in the fuel is converted on average into electricity, whilst the rest is lost as waste heat. Even the most advanced technologies do not convert more than 55% of fuel into useful energy
|Cogeneration uses both electricity and heat and therefore can
achieve an efficiency of up to 90%, giving energy savings
between 15-40% when compared with the separate
production of electricity from conventional power stations
and of heat from boilers. It is the most efficient way to use
fuel. Cogeneration also helps save energy costs, improves
energy security of supply, and creates jobs.
The heat produced by cogeneration can be delivered through various mediums, including warm water (e.g., for space heating and hot water systems), steam or hot air (e.g., for commercial and industrial uses). It is also possible to do trigeneration, the production of electricity, heat and cooling (through an absorption chiller) in one single process.
Trigeneration is an attractive option in situations where all three needs exist, such as in production processes with cooling requirements. Cogeneration schemes are usually sited close to the heat and cooling demand and, ideally, are built to meet this demand as efficiently as possible. Under these conditions more electricity is usually generated than is needed. The surplus electricity can be sold to the electricity grid or supplied to another customer via the distribution system. In recent years cogeneration has become an attractive and practical proposition for a wide range of applications. These include the process industries (pharmaceuticals, paper and board, brewing, ceramics, brick, cement, food, textile, minerals etc.), commercial and public sector buildings (hotels, hospitals, leisure centres, swimming pools, universities, airports, offices, barracks, etc.) and district heating schemes.
Costs and profitability
A well-designed and operated cogeneration scheme will always provide better energy efficiency than a conventional plant, leading to both energy and cost savings.
Cost savings depend on both the cost of the primary energy fuel and the price of electricity that the scheme avoids. However, although the profitability of a cogeneration project generally results from its cheap electricity, its success depends on using recovered heat productively, so a prime criterion is a suitable heat requirement. As a rough guide, cogeneration is likely to be suitable where there is a fairly constant demand for heat for at least 4,500 hours in the year.
The total investment in a CHP project depends upon the size of the installation and its design and characteristics. Under favourable conditions, payback periods of three to five years can be achieved on most cogeneration installations. Their operating life can reach 20 years.
- Cogeneration is the most efficient way of generating electricity, heat and cooling from a given amount of fuel. It
saves between 15-40% of energy when compared with the separate production of electricity and heat.
- Cogeneration helps reduce CO2 emissions significantly. It also reduces investments into electricity transmission
capacity, avoids transmission losses, and ensures security of high quality power supply.
- A number of different fuels and proven, reliable technologies can be used.
- A concurrent need for heat, electricity and possibly cooling indicates suitable sites for cogeneration.
- The initial investment in cogeneration projects can be relatively high but payback periods between 3-5 years
might be expected.
- The payback period and profitability of cogeneration schemes depends crucially on the difference between the
fuel price and the sales price for electricity.
- Global environmental concerns, ongoing liberalisation of many energy markets, and projected energy demand
growth in developing countries are likely to improve market conditions for cogeneration in the near future.
Achieving today’s energy goals
What if you could increase energy productivity and use less fuel, lower costs and reduce carbon emissions? Cogeneration makes it possible by generating electric power and reusing the waste heat created to provide steam, hot water and heating. The result is two forms of energy from one cost-efficient, low-emissions system. There is another option – trigeneration. This technology adds absorption chillers to the cogeneration process to create cooling for air conditioning or refrigeration.
Both enable operators to accelerate return on investment (ROI) and comply with emissions. Plus, in many countries, self-contained
on-site cogeneration plants can protect against grid volatility, delivering required capacity while optimizing reliability. Operators may also be able to sell surplus cogeneration power to the grid or other users for extra revenue and, depending on where they are, take advantage of environmental incentives programs and credits which can be traded at a profit or used to offset emissions.
All these benefits make cogeneration a positive commercial and environmental step for organizations worldwide.
Cogeneration systems can extract nearly three times the usable energy from a given amount of fuel compared to centralized coal-burning power plants, which only convert about 27% of fuel into usable electricity. On-site cogeneration plants, which burn natural gas or a variety of alternative gaseous fuels, with associated heat recovery, can provide up to 90% overall efficiency, maximizing ROI for power operators.
Reduced CO2 and NOx
When fuel is consumed in an on-site cogeneration plant, it produces almost 80% less carbon dioxide (CO2) per unit of energy compared to a centralized coal-fired power plant. This reduction is compounded by the fact that Cummins lean-burn gas fueled generator sets emit very low levels of oxides of nitrogen (NOx) and near-zero particulate (PM) matter. And because these generator sets operate with natural gas and alternative gaseous fuels, they also displace more carbon-intensive fuels. In all these ways, Cummins cogeneration solutions enhance sustainability and help ensure compliance with worldwide emissions standards, giving operators important reassurance.
By making continuous use of electricity and thermal energy, cogeneration can deliver up to 35% of overall energy savings depending on application and local gas vs. electricity costs. Operators may also be able to save further by claiming government emission-reduction rebates or incentives such as ‘green’ credits, which they can sell at a profit.
Greater reliability plus revenue potential
Grid-independent cogeneration plants heighten the control operators have over their energy, providing absolute reliability and protecting against rising energy costs. Surplus power can also be sold to the grid or other users for additional revenue. Plus, WSE lean-burn gas fueled generators run on ultra-dependable pipeline natural gas, or waste-to-energy gaseous fuels, increasing reliability further.
By adopting cogeneration, power operators can demonstrate their environmental responsibility, critical in maintaining a positive image within the world’s business and consumer communities.
Small Carbon Footprint
- Proven gas engine technology.
- Designed Life time: 20 years, overhaul term: 40000 hours.
- Over 85% cogeneration efficiency.
- Economical and low-cost running: lower gas and oil consumption.
- Before-sale service: proposal for right solution and genset selection, customized service.
- After-sale Service:1500 hours or one year covering all manufacturing defects.
- Free of charge training for operation and maintenance. (at WSE headquarter)
- Cylinder Block: High quality alloy cast iron for the rigidity performance and stability.
- Crankshaft and Rod: Robust and fully balanced crankshaft design for a more steadily rotation and higher strength.
- Lubrication System: Dual spin-on filter can separate impurity above 10um effectively and lower cost.
- Less accumulated carbon, reduces the abrasion between cylinder and valve, prolonging genset lifetime.
- Compact design: small size and weight
- Wide spare parts availability: Base on Cummins engine parts, the engine base body
made of the parts from the supplying factory for Cummins engine.
- Environment-friendly: state-of-the-art gas mixer—IMPCO, perfect air fuel ratio, especially designed firebox, sufficient combustion to reduce gas consumption and increase engine heat efficiency, effectively lessen NOX emission.
- ISO standard production:
- Long life and durable engine parts produced strictly accord to ISO9001-2000 International Quality Management System
- Advanced ignition sensor and ECU (Electronic Control Unit) ignition system
- Adopting high-precision special gas engine speed governor: precise speed governing, instant recovering ability so as to fit different loads upon the three signals: rotating speed, load and temperature.
- Precisely-controlled engine air intake and exhaust time.
- Equipped with brand generator—Leroy Somer
- Using advanced intelligent PLC genset controller: capable computer chip, with full monitoring, control, alarm and protecting function, all-in-one configuration for all kinds of demands.
- Electrical system: 24V cranking motor starting and battery charging system.
- Self-contained power genset, requires accessories.
- Parallel operation with genset or city, provincial or state power grid option.
- Instant startup configuration for option
- Powered by a natural gas, propane or refined bio-gas fuelled engine the MCHP machine produces volumes of electricity and hot water.
- Induction generator for simplicity.
- Will modulate its output to match demand.
- Water cooling collects as much heat output as possible for maximum efficiency.
- A real 92% efficiency is obtainable.
- Internet monitoring 24/7 for performance and for service.
USA and Canadian Specifications - MCHP units:
600 Volts, 3 Phase, 60 Hz and output of 19 kW & 38 kW heat, CSA and ULCertified.
Designed for Load Displacement. Each Installation will be designed to standards set by WSE E&P’s Engineering staff.
All installations will be under the direct supervision of a Licensed Contractor and a Master Electrician.
If your needs exceed 19kW of electrical production then WSE will install multiple machines in parallel so that 38kW and 57kW installations are available.
A 120/240 Volt, single phase CHP with 8.5 kWe output is currently in development
Electrical output (modulating)
7 – 19 kW
Thermal output (hot water)
14 – 38 kW
natural gas, propane, bio-gas
Dimensions (L x W x H)
125 x 75 x 111
700 kg (1440 lbs)
CO < 150 mg/Nm 3 , NOx < 350 mg/Nm 3
Maximum hot water temperature
85 ° C
600 V, 3 Ph, 60 Hz induction generator
2.4 - 6 m 3 /hr (81 - 204 cfh)
24/7 via internet
- Low Carbon Footprint from CO2 Reductions
- Low Noise Operations
- Low Service Interval
- High Energy Efficiency of 92%
- Easy to Install & Externally Monitored 24/7
- Reasonably Priced to Maximize your ROI
- No-Cost Sevice Plan & Warranties Included
WSE water fired SINGLE-EFFECT chillers or chiller-heaters have cooling capacities of 10, 20 and 30 tons of refrigeration and produce chilled water for cooling or hot water for heating in comfort air conditioning applications. The absorption cycle is energized by a heat medium (hot water) at 158°F to 203°F from an industrial process, cogeneration system, solar energy or other heat source and the condenser is water cooled through a cooling tower.
The WSE absorption chiller or chiller-heater uses a solution of lithium bromide and water, under a vacuum, as the working fluid. Water is the refrigerant and lithium bromide, a nontoxic salt, is the absorbent. Refrigerant, liberated by heat from the solution, produces a refrigerating effect in the evaporator when cooling water is circulated through the condenser and absorber.
When the heat medium inlet temperature exceeds 154.4°F, the solution pump forces dilute lithium bromide solution into the generator. The solution boils vigorously under a vacuum and droplets of concentrated solution are carried with refrigerant vapor to the primary separator. After separation, refrigerant vapor flows to the condenser and concentrated solution is precooled in the heat exchanger before flowing to the absorber.
In the condenser, refrigerant vapor is condensed on the surface of the cooling coil and latent heat, removed by the cooling water, is rejected to a cooling tower. Refrigerant liquid accumulates in the condenser and then passes through an orifice into the evaporator.
In the evaporator, the refrigerant liquid is exposed to a substantially deeper vacuum than in the condenser due to the influence of the absorber. As refrigerant liquid flows over the surface of the evaporator coil it boils and removes heat, equivalent to the latent heat of the refrigerant, from the chilled water circuit. The recirculating chilled water is cooled to 44.6°F and the refrigerant vapor is attracted to the absorber.
A deep vacuum in the absorber is maintained by the affinity of the concentrated solution from the generator with the refrigerant vapor formed in the evaporator. The refrigerant vapor is absorbed by the concentrated lithium bromide solution flowing across the surface of the absorber coil. Heat of condensation and dilution are removed by the cooling water and rejected to a cooling tower. The resulting dilute solution is preheated in a heat exchanger before returning to the generator where the cycle is repeated.
When the heat medium inlet temperature exceeds 154.4°F, the solution pump forces dilute lithium bromide solution into the generator. The solution boils vigorously under a vacuum to generate refrigerant vapor and droplets of concentrated solution. Since the changeover valve is open during heating operation, the mixture of refrigerant vapor and concentrated solution flows directly into the evaporator. Some refrigerant vapor flows through the condenser before reaching the evaporator.
Hot refrigerant vapor condenses on the surface of the evaporator coil and heat, equivalent to the latent heat of the refrigerant, is transferred to the hot water circuit. The recirculating water is heated to 131°F. Refrigerant liquid mixes with concentrated lithium bromide solution and the resulting dilute solution returns to the generator where the cycle is repeated back to links
|The landfill gas generating power project flow chart:|