A method of modulating the impact of electromagnetic irradiance on the thermal energy budget of a predominantly enclosed space, in some instances buildings, includes providing at least an inner shell and placing a plurality of functional elements in an exterior position relative to an outside facing side thereof. The outside facing surfaces of the functional elements have higher reflectivity in the visible (VIS) and near infrared (NIR) wavelength range relative to the mid-infrared (MIR) wavelength range. The inside facing surfaces of the functional elements have higher reflectivity in the NIR and MIR wavelength range relative to the VIS wavelength range. The functional elements are least in one degree of freedom spatially adjustable. A thermal carrier medium may be present to increase thermal capacity and to permit transfer of thermal energy. A control system adjusts the spatial position of some of said functional elements and/or the distribution of the thermal carrier medium such that the thermal energy budget of the predominately enclosed space is influenced according to at least one desired target value.

Disclosed are methods and functional elements for enhanced thermal management of predominantly enclosed spaces. In particular, the invention enables the construction of buildings with reduced power requirements for heating and/or air-conditioning systems since under certain conditions less energy for heating or cooling is required to maintain, within certain boundaries, desirable temperatures inside such buildings, habitats, or other enclosed spaces.

In some instances the invention is in part based on dynamically changing functional elements with variable properties, or effective properties, in terms of their electromagnetic radiative behavior and/or their thermal energy storage properties, or the spatial distribution of the stored thermal energy, which permits the application of methods and algorithms to control the overall thermal behavior of the entire structure in such a way that desired levels of inside temperature can be reached with reduced consumption of external energy (typically electricity, gas, oil, or coal).

In some instances no conventional heating of cooling is required at all, whereas in other instances the expenditure of external energy for conventional heating or cooling is reduced. In some instances the invention enables the reduction of the time to reach desired temperatures inside such buildings, habitats, or other predominantly enclosed spaces.

In some instances the obtained sensor data may be used to detect the occurrence or imminently predicted occurrence of a catastrophic event, including but not limited to fire or flooding, internal or external to the predominantly enclosed space.

In some embodiments this information may support any single or any combination of locally or remotely alerting humans, alerting rescue units, activating countermeasures, uploading at least partially said sensor data to off-site computers, determining the cause(s) of said catastrophic event, determining liability, determining insure payments, determining insurance premiums.

Waste heat generated by devices as a byproduct of their operation is utilized to increase and maintain the temperature of non-potable water to neutralize biological contaminants, thereby rendering such water potable. The potable water can then be utilized for evaporative cooling of the devices. A temperature sensor monitors the temperature of the non-potable water and a controller controls the pump to provide sufficient time for the water to remain in the heat exchanger above a predetermined temperature to neutralize biological contaminants and render such water potable. To the extent that different devices generate different quantities and intensities of waste heat, multiple heat exchangers are utilized, with lower intensity waste heat serving to preheat the water and, thereby, reduce the amount of time needed to reach the target temperature in a primary heat exchanger. Waste heat not utilized to generate potable water can be utilized for other heat-driven processes.

Waste heat generated by devices as a byproduct of their operation is utilized to increase and maintain the temperature of non-potable water to neutralize biological contaminants, thereby rendering such water potable. The potable water can then be utilized for evaporative cooling of the devices. A temperature sensor monitors the temperature of the non-potable water and a controller controls the pump to provide sufficient time for the water to remain in the heat exchanger above a predetermined temperature to neutralize biological contaminants and render such water potable. To the extent that different devices generate different quantities and intensities of waste heat, multiple heat exchangers are utilized, with lower intensity waste heat serving to preheat the water and, thereby, reduce the amount of time needed to reach the target temperature in a primary heat exchanger. Waste heat not utilized to generate potable water can be utilized for other heat-driven processes.

A temporary or emergency heating and cooling apparatus and method for use in households without electrical power, but still supplied with water pressure and hot water, and with water discharge to a suitable open-loop discharge location such as a sewer or drain field. The apparatus in a preferred form comprises a water-powered fan adapted to be temporarily connected to a household cold water tap, a radiator thermally coupled to the fan flow path for heat transfer and supplied with either hot or cold water from a household tap, and a water discharge connection from the water-powered fan and the radiator to a household discharge or drain.

The controller controls a bypass solenoid valve and hot-water supply expansion unit in a defrosting operation based on a refrigerant temperature detected by a first temperature sensor and a heat medium temperature detected by a second temperature sensor.

A thermal energy exchange and ventilated hollow core slab system and method within a building where the slab has an air passage with an inlet and outlet, an air handler unit having adjustable heating/cooling structure and, and ventilation structure connected to the hollow core concrete slab, and a building control connected to the hollow core concrete slab and air handler system for relative thermal exchange between the air and hollow core concrete slab to control user comfort; where the building is grid enabled.