The present invention relates to a trigeneration energy supply system having improved cooling and system use efficiency. The trigeneration energy supply system according to one embodiment of the present invention can comprise: a vacuum pump; a vacuum chamber inside which a vacuum is created by the vacuum pump; a condensed water storage tank positioned higher than the vacuum chamber, and prepared so as to store condensed water formed when steam generated by evaporating water brought inside the vacuum chamber is transferred to the inside of the tank by the vacuum pump; a cooling pipeline arranged to pass through the inside of the vacuum chamber cooled during the water evaporation and prepared to deliver cool air to a cooling load; and a small hydroelectric power generation system for generating electrical power by allowing the condensed water stored in the condensed water storage tank to be poured from at least the height of the condensed water storage tank.

The present invention relates to a combined fuel cell and boiler system, and comprising: a fuel cell portion for receiving supplied outside air and raw material gas and generating electricity through a catalyst reaction; and a boiler portion comprising a latent heat exchanger, which is connected to an exhaust gas pipe of the fuel cell portion, for collecting the latent heat of self-generated exhaust gas with the latent heat of exhaust gas from the fuel cell portion. The present invention can effectively increase the efficiency of a boiler by supplying the exhaust gas from the fuel cell to the latent heat exchanger in the boiler, so as to be heat-exchanged in the latent heat exchanger with the exhaust gas from the boiler and then discharged, and can simplify the composition by unifying exhaust gas pipes.

A fenestration assembly comprising a sliding glass assembly that slides between a fully closed position and a fully open position in which the sliding glass assembly is received into a pocket of the fenestration assembly. The pocket is covered on at least one side with insulation. The fenestration assembly may have two sliding glass assemblies. The fenestration assembly may be used in an energy efficient building system.

A cogenerating system includes a Rankine cycle, a high-temperature heat transfer medium circuit, a low-temperature heat transfer medium circuit, a bypass channel, a heat exchanger, and a flow rate adjustment mechanism. The high-temperature heat transfer medium circuit is configured such that an evaporator is supplied with a high-temperature heat transfer medium by a high-temperature heat transfer medium heat exchanger. The low-temperature heat transfer medium circuit is configured such that a condenser is supplied with a low-temperature heat transfer medium by a low-temperature heat transfer medium heat exchanger. The flow rate adjustment mechanism includes at least a flow rate limiter that limits the flow rate of the high-temperature heat transfer medium to be supplied to the evaporator, and adjusts a ratio of the flow rate of the high-temperature heat transfer medium flowing through the bypass channel to the flow rate of the high-temperature heat transfer medium flowing through the evaporator.

A cogeneration system has a fuel cell, a fuel cell system, and an indirect supply line. The fuel cell system has a first heat exchange unit, a heat storage tank, and a waste heat recovery line. The first heat exchange unit is positioned close to an outer side of the fuel cell or inside thereof and causes a heat medium to recover heat generated at the fuel cell. The heat storage tank stores the heat medium and provides heat in response to a hot-water supply demand. The waste heat recovery line causes the heat medium to circulate between the fuel cell and the heat storage tank. The indirect supply line includes a second heat exchange unit that supplies heat by causing the heat medium stored in the heat storage tank and a medium to exchange heat with each other.

A heating and power generating apparatus comprises: a frame installed on the roof of a building and having a predetermined area; a plurality of power generating units arranged inside the frame to collect sunlight and generate electricity; and a hot water supply unit buried inside of the frame to absorb sunlight and perform heating and hot water supply. According to the present invention, hot water can be generated by sunlight in the winter to supply hot water and heat a house, and power can be generated by sunlight in the summer to supply power for cooling a room and thus conserve the electrical energy used in a cooler, thus promoting energy saving and environmental protection.

A system for heating water includes a first tank containing water and a heater element for heating the water, a solar panel, a control circuit coupling the solar panel to the heater element, and a second tank. The control circuit couples power to the heater element in proportion to available sunlight. The maximum temperature of the water in the first tank is higher than the maximum temperature of the water in the second tank. Water is drawn from the system through the second tank.

A short waste-heat reuse container disposed adjacent to a 40-f container that contains a radiator 23, an engine 21, and a power generator 22 disposed in a longitudinal direction of the container, the waste-heat reuse container collecting waste heat of the engine and generating steam or hot water, the waste-heat reuse container containing a muffler 2 that muffles exhaust gas of the engine, a boiler 4 that transfers heat of the exhaust gas to water and generates steam, and a heat exchanger 3 that transfers heat of cooling water heated by the engine to water and generates hot water, wherein the muffler is disposed upright opposite to the boiler in the longitudinal direction of the waste-heat reuse container, an exhaust gas inlet 2a of the muffler being disposed on an upper wall of the container.

The present invention provides a heat medium circulation structure for a micro-combined heat and power (micro-CHP) generator in which a heat medium that primarily looses heat by undergoing heat exchange with water in a hot-water tank and thus has a low temperature further performs heat exchange with low-temperature direct water supplied through a direct water line, thereby further loosing heat, in a return line heat exchanger, and then returns to a stirling engine through a heat medium return line, thereby effectively cooling a low temperature portion of the stirling engine. Thus, the heat medium circulation structure enables high electricity production efficiency. Further provided is a hot water temperature control method for a micro-CHP generator in which the consumption of hot water is detected by a flow sensor. First and second predetermined temperatures are defined to operate a stirling engine in the case of temperature droppings of hot water respectively due to natural radiation and consumption of hot water.

The integrated solar absorption heat pump system includes an absorption heat pump assembly (AHPA) having a generator, a condenser in fluid communication with the generator, an evaporator/absorber in fluid communication with the condenser and the generator, and a heat exchanger in communicating relation with the evaporator/absorber; a solar collector in fluid communication with the generator of the AHPA; a photovoltaic thermal collector in communicating relation with the evaporator/absorber of the AHPA; a plurality of pumps configured for pumping a fluid throughout the system to provide the desired heating or cooling; a power storage source, e.g., a solar battery, in communicating relation with the photovoltaic thermal collector; and a coil unit in communicating relation to the evaporator/absorber for receiving an air-stream. The absorption heat pump assembly can include an absorber and a solution heat exchanger.