What is trigeneration of cold, heating and electricity?

Introduction What is trigeneration? Trigeneration is an extension of the concept of combined heat and power, which is a gas turbine generator or an alternative internal combustion generator.

What is trigeneration of cold, heating and electricity?

Trigeneration is an extension of the concept of combined heat and power, which uses waste thermal energy from gas turbine generators or alternative internal combustion generators to produce cooling water for air conditioning and domestic hot water. Here is the schematic diagram of the combined cooling, heating and power system: natural gas enters the gas turbine generator to produce electrical power, and the high temperature exhaust gas from the gas turbine enter the absorption refrigeration unit to produce air conditioning. water in summer and hot water in winter. It can also produce air conditioning water and hot water simultaneously. The new method of using energy is very efficient and can significantly reduce the energy costs of the building.

What is the classification of residual thermal resourcesthem and the principles of their valorization?

During full heat recovery, hot water is continuously circulated, while cooling water is circulated and then discharged! In the case of total heat recovery, the condenser must consist of two shell and tube exchangers. When the unit's condenser is in full heat recovery mode, for example, if the user's desired hot water is 45 degrees, but the high pressure protection temperature on the waste heat recovery side of the unit is 'host is 50 degrees, the host will. no alarm and stop working. In fact, when the total heat recovery side reaches 45 degrees, the host will stop the heat recovery water pump and start the cooling water pump! Another thing is that when the host is in cooling mode, look at the sample and see if you see that the water flow on the total hp recovery sidealeur is twice as high as the water flow in the condenser! Therefore, during complete heat recovery, the refrigerant liquid is exchanged with a large amount of water at high temperature, relatively speaking, the condenser side refrigerant liquid is exchanged with a medium amount of water at relatively lower temperature . In fact, the heat exchanged is always the same, so it does not affect the cooling effect!

Waste heat resources can be divided into three categories according to their temperature: ?0?1 High temperature waste heat (waste heat resources with temperature above 500 ℃) ?0?1 Waste heat medium temperature waste heat (waste heat with temperature between 200 and 500 ℃ Resources) ?0?1 Low temperature waste heat (flue gas with temperature below 200°C and liquid below 100°C)is generally divided into seven categories: high temperature waste heat of flue gas, waste heat of high temperature slag and waste heat of commercial temperature products (including intermediate products), waste heat of cooling medium, waste heat of gas combustible exhaust, chemical reaction and waste heat of carbon, waste heat of condensation water, etc. Recovery Principles: 1. High temperature flue gas and waste heat should be used first by this equipment or system. 2. Waste heat and energy can be used to produce steam or hot water, as well as to generate electricity, etc.

3. Perform a comprehensive analysis of the thermal efficiency and economic feasibility of the business.

4. In response to heat carriers who must recover lost heat, formulate nospecific management rules for use.

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