摘要:
A shower or car-wash is provided with a heat-exchanger element of thin sheet metal mounted under or in the floor to pre-heat incoming cold water using heat recovered from the spent sprayed water. The heat exchanger element has a rectangle wave shaped cross section thereby providing greater heat transfer area and being able to withstand heavy vertical loads. The vertical portions of the rectangle wave may advantageously be provided with vertical reinforcing ribs in the form of depressions stamped in the metal.
摘要:
A fuel cell cogeneration system comprises a fuel cell, a cooling system for the fuel cell, a heater, a heat utilization portion configured to store heat recovered in the cooling system to allow the heat to be consumed, a detector configured to detect calories remaining in the heat utilization portion, and a controller, wherein the controller determines whether or not the calories remaining in the heat utilization portion are at least not less than the calories required to increase the temperature of the fuel cell to the operating temperature, and based on determination, increases the temperature of the fuel cell to the operating temperature by supplying the remaining calories to the fuel cell through the cooling system and/or by heating the cooling water in the cooling system by the heater.
摘要:
A method, apparatus and system are provided for heating fluids using a waste heat recovery arrangement adapted for application to existing heat exchange systems that generate waste heat and/or heated exhaust gases. The method, apparatus and system utilize the heater control arrangement of the existing heat exchange system to control the heating of the fluid and a pumping arrangement, for example, a hydrokinetic pumping arrangement, to circulate the fluid to be heated from a location outdoors to the heat exchange system.
摘要:
A system for heating water in a hot water storage tank, comprising a heater; and means for drawing water onto the heater to be heated from beneath the heater.
摘要:
A method for a refrigeration system includes applying, by a gas cooler of the refrigeration system, a first cooling stage to refrigerant circulating through the refrigeration system load. The method further comprises applying, by a heat exchanger located downstream from the gas cooler, a second cooling stage to the refrigerant, wherein the second cooling stage removes heat from the refrigerant, and applying, by the heat exchanger located downstream from the gas cooler, the heat removed during the second cooling stage to a water heating system operable to heat water.
摘要:
A hardware system that performs new energy- and water-saving, restorative tasks upon use is provided. In some aspects of the invention, energy-saving hot water recapturing techniques are provided. In a preferred embodiment, the system may push hot water back to a water tank, and halt such pushing after capturing all such hot water. In other aspects, specialized energy-saving pipes further assist the system, and a user's behavior may also assist the system in implementing additional energy and water-saving options and settings, including, but not limited to, a “Final Rinse” option and the timing of ending water service.In still other aspects, a user's ending use of water service a plumbing may also trigger an ending spray of handled parts of those fixtures and, optionally, a soap or antiseptic spray or other secretion. The same technology may be applied to other handles and fixtures, like door handles or elevator buttons.
摘要:
The present invention relates to a structure for controlling a temperature of hot-water supply from a waste heat recovery system, and more particularly, to a structure for controlling a temperature of hot-water supply from a waste heat recovery system using a three-way valve capable of stably supplying hot water at a hot-water supply setting temperature during hot-water supply use using the three-way valve and saving energy to improve system efficiency, in a waste heat recovery system recycling waste heat.
摘要:
In a cogeneration system that stores hot water heated by exhaust heat of a generator in a hot water storage tank, during return to normal control from anti-freezing control, the return to the normal control is rapidly performed and freezing of water in a water circulating passage is also suppressed, suppressing the drop in system efficiency. When a freezing condition, indicating a risk of freezing of the water in the water circulating passage such as a radiator unit, is met, the anti-freezing control is executed. When a cancellation condition of the anti-freezing control is met, a heat recovery temperature target value (first return target value) SVTf2 at the outlet of the generator is set to a minimum target temperature SVTf2_min. Until an actual heat recovery outlet temperature (actual temperature) PVTf2 reaches a standard target value Tf2_std, every time the actual temperature PVTf2 reaches a value obtained by subtracting a predetermined temperature x from the first return target value SVTf2, the first return target value SVTf2 is updated to a value obtained by adding a predetermined temperature y (>x).
摘要:
A manufacturing method and structure of a heat exchanger for a bathing shower involves two plates welded together to form a passage for cold water. Hot water from the shower drips onto the upper plate and transfer heat to cold water flowing through the passage between the plates. The upper plate may be spot welded to the lower plate at bottoms of frustoconical indentations in the lower plate, the plates may sandwich an adiabatic layer, and/or the passage between the plates may be formed by pipes situated between the plates.
摘要:
A shower water recycle and reheat system which can be retrofitted into existing showers or tub showers without physical attachment to the house waste or water lines and does not interfere with the existing shower function. The system includes equipment for electrical safety and recycled water bacteria protection. The system can be installed without having to remodel the bathroom which lowers the overall cost of the installed system. This system can also be installed in new construction or during a bathroom remodel project where the equipment enclosure portion of the system can be installed in a remote location. The system gives the user the ability to take longer showers without the associated waste of water, energy and the depletion of the household hot water supply.