Combined heating, cooling & power handbook : technologies & by Neil Petchers

By Neil Petchers

A how-to consultant for utilizing power and environmental potency as a method to be low-budget and ecocnomic, this e-book contains pictures of kit from quite a lot of brands, cutaway drawings, format schematics, functionality curves, information tables, functionality tests according to brands' information, and contributions from a number of autonomous engineering resources. it really is divided into 4 major components: idea and expertise; working setting; purposes; and research and implementation. the writer develops an built-in method of strength and cost-efficiency venture improvement, matching energy creation and heating/cooling specifications to supply stable monetary returns.

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Extra resources for Combined heating, cooling & power handbook : technologies & applications an integrated approach to energy resource optimization

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1-10 Steam Turbine Rankine Bottoming Cycle. S. eps Electricity Generator Low-temperature Exhaust High-temperature Exhaust Mechanical Inefficiency Generator Inefficiency Electricity Fuel (optional) Water Steam Turbine Heat-recovery boiler Fig. 1-11 Combined-Cycle. S. DoE 10 Process Steam Generator C hapter T wo Expressing Po w e r C y c l e P e r f o r m a n c e T he thermodynamic and economic performance of heat and power systems can be evaluated and expressed in many ways. This chapter presents some of the concepts and equations that may be used to determine the various performance characteristics of systems featuring simple cycles, cogeneration cycles, and combined cycles.

For example, a rock resting on the top of a hill has the potential to roll down, or fuel has the potential to be combusted and liberate heat energy. The more common classifications of energy include: mechanical, electrical, electromagnetic, chemical, nuclear, gravitational, and thermal. Thermal energy is associated with atomic and molecular vibration. It is considered a basic energy form because all other energy forms can be completely converted into thermal energy. But the second law of thermodynamics limits conversion of thermal energy into other forms.

The energy received produces work by expanding a working fluid reversibly and adiabatically in an ideal frictionless engine. During expansion, the engine produces a net work output. The working fluid, at temperature TL, rejects heat at constant temperature reversibly and isothermally to an infinite sink and is then adiabatically and reversibly compressed to its initial state. Figure 2-1 shows a temperature-entropy (T-s) diagram of the Carnot cycle for a heat engine. The four basic steps or processes are indicated below.

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