Various embodiments may relate to a radiant cooler. The radiant cooler may include a chamber. The radiant cooler may also include a vacuum pump connected to the chamber. The radiant cooler may further include an infrared absorber arranged within the chamber. A wall of the chamber may be configured to allow at least a portion of infrared light to pass through. The vacuum pump may be configured to generate a vacuum in the chamber. The infrared absorber may include a fluid, i.e. a liquid, configured to evaporate into the vacuum upon receiving thermal energy from at least the portion of infrared light.

A water distribution apparatus and method including cold and hot water supplies, a fan coil (or chilled beam device), a control valve having cold and hot water inlets and outlets, cold and hot water outputs configured to supply cold and hot water to the fan coil, cold and hot water return inlets configured to receive from the fan coil the water supplied by the cold and/or water outputs and outputting the cold and/or hot water to the cold and hot water supply lines, respectively, via the cold and hot water outlets, respectively. Cold and hot water is supplied from the cold and/or hot water outputs to the fan coil and received into the cold and hot water return inlets, respectively, and the cold and hot water supplied by the cold and hot water outputs to the fan coil is output to the cold and hot water supply lines, respectively.

A controller controls a radiative air-conditioning equipment which cools or heats space separated from indoor, space by a radiation panel, with an air conditioner, so as to cool or heat the indoor space by a radiation effect of the radiation panel. A data collection unit collects indoor environment data and panel temperature data from an indoor environment measurement sensor and a radiation panel measurement sensor, respectively. A heat quantity determination unit acquires panel characteristics data and device characteristics data, and determines a time-series pattern of a heat quantity to be processed by the radiative air-conditioning equipment based on the acquired data and the data collected by the data collection unit. An operation instruction unit gives to the air conditioner an instruction for operating the air conditioner according to the time-series pattern determined by the heat quantity determination unit.

There is provided a system for circulating air. The system for circulating air has a concrete element that has an open cell porous matrix concrete. The concrete element has an inner surface opposite an outer surface. The inner surface faces an enclosed dwelling space of a building. The system for circulating air has an air circulation conduit in fluid flow communication with the outer surface of the concrete element, and a fan configured to circulate air along the air circulation conduit and through the open cell porous matrix, across a thickness of the concrete element, into the enclosed dwelling space.

In the field of building and of cooling systems there is disclosed a wall-mounted radiant cooling device for rooms, including: at least two cooling tubes positioned on two different levels adapted for cooled water to flow through; a fixing unit of the cooling tubes to the outside of the walls of the rooms. Each cooling tube includes two shaped longitudinal fins, and the radiant cooling device further includes a channel, arranged parallel to and underneath the cooling tubes, adapted to collect the condensate that is generated through contact with the hot air present in the rooms provided with the cooling tubes. The longitudinal fins of the cooling tubes are adapted to cooperate with one another to convey the condensate into the channel.

A modular building with a structure having various constructional elements including columns joists and rafters each including a void to accommodate pipes that carry fluid at a certain temperature, the pipes extending at least below the floor of the building through the joists that are enclosed by a base to define a cavity affecting the temperature of the air in-between the floor and the base. Air vents are provided in the floor to allow for the air flow between the cavity and the inside of the modular building.

A pneumatic radiation air conditioner includes: a radiation unit configured to radiate air-conditioning air; and a fan configured to feed the air-conditioning air to the radiation unit. The radiation unit includes: a first chamber, through which the air-conditioning air flows; a second chamber configured to take in the air-conditioning air discharged from the first chamber and discharge the air-conditioning air and radiate heat of the air-conditioning air to a space to be air conditioned; and an air stream adjuster configured to adjust air velocity distribution and air volume distribution of the air-conditioning air that is discharged from the first chamber to the second chamber.

Various aspects as described herein are directed to a radiative cooling apparatuses and methods for cooling an object. As consistent with one or more embodiments, a radiative cooling apparatus includes an arrangement of a plurality of different material located at different depths along a depth dimension relative to the object. The plurality of different material includes a solar spectrum reflecting portion configured and arranged to suppress light modes, thereby inhibiting coupling of the incoming electromagnetic radiation, of at least some wavelengths in the solar spectrum, to the object at a range of angles of incidence relative to the depth dimension. Further, the plurality of material includes a thermally-emissive arrangement configured and arranged to facilitate, simultaneously with the inhibiting coupling of the incoming electromagnetic radiation, the thermally-generated electromagnetic emissions from the object at the range of angles of incidence and in mid-IR wavelengths.

Air conditioning systems for cooling multiple-zone spaces, each zone having a thermostat, where each of multiple pump modules delivers chilled water to chilled beams in a plurality of zones and a chilled-water distribution system circulates chilled water through a chilled-water distribution loop to the multiple pump modules. Current dew points are determined in zones that call for cooling, and temperature of chilled water delivered to the chilled beams is maintained for each pump module at least a predetermined temperature differential above the highest dew point within the zones served by that pump module. Each zone has a zone control valve to shut off flow to that zone. Serving a plurality of zones from each pump module reduces how many pump modules are required. Zones served by one pump module may be selected to have similar thermal loads. Pump modules may supply hot water when heat is needed instead of cooling.

Using thermal radiation to supply occupant comfort has long existed in the heating domain, and to a lesser scale in the cooling domain. Cooling power of radiant cooling systems is limited by the risk of condensation on the panel itself, as well as adjacent surfaces. Similarly, convective system losses to the ambient air prevent maintaining a large temperature difference from the surface and the surroundings. The disclosed approach combats these common pitfalls of radiant cooling systems in the building domain, increasing the power and therefore applicability of radiant cooling.