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An energy-saving method for operating a climate control system includes reporting an ambient outside temperature from a first temperature sensor to a controller unit and reporting a climate control air temperature from a second temperature sensor to the controller unit. The control unit performs an

An energy-saving method for operating a climate control system includes reporting an ambient outside temperature from a first temperature sensor to a controller unit and reporting a climate control air temperature from a second temperature sensor to the controller unit. The control unit performs an algorithm to define a control criterion value in response to the ambient outside temperature. A non-refrigeration cycle based heating element is activated to provide heated air to an interior surface of a windshield if the climate control air temperature is above the control criterion value. Moreover, a refrigeration cycle based cooling element and the non-refrigeration cycle based heating element are activated to provide the heated air to the interior surface of the windshield if the climate control air temperature is at or below the control criterion.

대표청구항 ▼

An energy-saving method for operating a climate control system includes reporting an ambient outside temperature from a first temperature sensor to a controller unit and reporting a climate control air temperature from a second temperature sensor to the controller unit. The control unit performs an

An energy-saving method for operating a climate control system includes reporting an ambient outside temperature from a first temperature sensor to a controller unit and reporting a climate control air temperature from a second temperature sensor to the controller unit. The control unit performs an algorithm to define a control criterion value in response to the ambient outside temperature. A non-refrigeration cycle based heating element is activated to provide heated air to an interior surface of a windshield if the climate control air temperature is above the control criterion value. Moreover, a refrigeration cycle based cooling element and the non-refrigeration cycle based heating element are activated to provide the heated air to the interior surface of the windshield if the climate control air temperature is at or below the control criterion. ond channel flow of the fluid, the second channel boundary and the interchannel boundary both being disposed to engage in heat transfer with the fluid in the second channel, the first channel comprising a first channel upstream region having a first channel upstream region flow cross-sectional area, in series with a first channel downstream region having a first channel downstream region flow cross-sectional area, the second channel comprising a second channel upstream region having a second channel upstream region flow cross-sectional area, in series with a second channel downstream region having a second channel downstream region flow cross-sectional area, the first channel upstream region flow cross-sectional area being greater than the first channel downstream region flow cross-sectional area, the second channel downstream region flow cross-sectional area being greater than the second channel upstream region flow cross-sectional area, and further comprising, the first channel upstream region, additional first channel upstream region heat transfer surface disposed to engage in heat transfer with the fluid in the first channel upstream region, and, in the second channel downstream region, additional second channel downstream region heat transfer surface disposed to engage in heat transfer with the fluid in the second channel downstream region, wherein the first channel upstream region has a first channel upstream region total heat transfer surface area in contact with the fluid in the first channel upstream region, and the first channel downstream region has a first channel downstream region total heat transfer surface area in contact with the fluid in the first channel downstream region, and the second channel upstream region has a second channel upstream region total heat transfer surface area in contact with the fluid in the second channel upstream region, and the second channel downstream region, has a second channel downstream region total heat transfer surface area in contact with the fluid in the second channel downstream region, and wherein the first channel upstream region total heat transfer surface area and the second channel upstream region total heat transfer surface area define a heat transfer surface area distribution factor which is the larger of those two quantities divided by their sum, and the first channel upstream region flow cross-sectional area and the second channel upstream region flow cross-sectional area define a flow cross-sectional area distribution factor which is the larger of those two quantities divided by their sum, and wherein the heat transfer surface area distribution factor is greater than the flow cross-sectional area distribution factor. 2. The apparatus of claim 1, wherein the first channel flow of the fluid has a first channel flowrate and the second channel flow of the fluid has a second channel flowrate, and the first channel flowrate and the second channel flowrate are substantially equal to each other. 3. The apparatus of claim 1, wherein the first channel flow of the fluid has a first channel flowrate and the second channel flow of the fluid has a second channel flowrate, and the first channel flowrate and the second channel flowrate are substantially equal to each other. 4. The apparatus of claim 1, wherein the additional first channel upstream region heat transfer surface is substantially similar to the additional second channel downstream region heat transfer surface. 5. The apparatus of claim 1, wherein either the first channel upstream region or the second channel downstream region, or both, comprises: a first sub-channel comprising a first sub-channel upstream region having a first sub-channel upstream region flow cross-sectional area, in series with a first sub-channel downstream region having a first sub-channel downstream region flow cross-sectional area, the first sub-channel having boundaries disposed to engage in heat transfer with the fluid in