Abstract: A helical turbine is operatively connected to at least one generator system for generating electrical power. System performance is optimized by controlling the operative angle between the longitudinal axis of the turbine and the direction of the current flow and by controlling a pitch ratio of the turbine. A pair of turbines, arranged in V-shape, each at the operative angle from a neutral centerline, provides symmetry and counteracts reactive torque. For wind operations, the V-shape is freely rotatable into the wind. For bi-directional tidal operations, the V-shape is part of a buoyant structure, positioned in the current and anchored to the floor. The structure is fit with control surfaces to ensure the system orientation. In unidirectional currents, one or more turbines can be angled downwardly into the current at the operative angle, elevators ensuring the angle is maintained.

Abstract: A helical turbine is operatively connected to at least one generator system for generating electrical power. System performance is optimized by controlling the operative angle between the longitudinal axis of the turbine and the direction of the current flow and by controlling a pitch ratio of the turbine. A pair of turbines, arranged in V-shape, each at the operative angle from a neutral centerline, provides symmetry and counteracts reactive torque. For wind operations, the V-shape is freely rotatable into the wind. For bi-directional tidal operations, the V-shape is part of a buoyant structure, positioned in the current and anchored to the floor. The structure is fit with control surfaces to ensure the system orientation. In unidirectional currents, one or more turbines can be angled downwardly into the current at the operative angle, elevators ensuring the angle is maintained.

Abstract: A ventilation system for providing fresh outdoor directly to each floor through an intake damper on the floor and for admitting only as much air as is required to meet the required outdoor air requirements when the temperature of the outdoor is at extreme ambient temperatures. The system utilizes a compartment unit on each floor and a plurality of VAV's which are located in zones on the floor for achieving desired temperatures in each zone by combining the recirculating air with the outdoor fresh air for delivering to the VAV's at about 55° F.

Abstract: A method and system for the distribution of water in a high rise building is provided using a minimum number of piping risers. The system has a domestic cold water riser, and a domestic hot water supply riser and a return riser. At each serviced floor, a cold water supply main extends from the domestic cold water riser and a hot water supply main extends from the domestic hot water supply riser. On each floor at which riser pressure is higher than domestic use pressures, a valve reduces the pressure of the entire cold water supply main to domestic use pressures. One or more valves at each of one or more suites on the floor reduce the pressure of the hot water to each suite, leaving the hot water supply main for the floor at full riser pressure. Coupling fan-coils with chilled water supply and the full pressure domestic hot water provides an efficient piping system for both environmental controls and domestic hot water use.

Abstract: A temperature conditioning system for a plurality of suites of a high rise building is provided utilizing at least domestic hot water circulated through tubing fit to a radiant wall in a suite for heating the suite. A hot water heating system in communication with a supply riser and return riser provides hot water at variable pressure to each of the multiple serviced floors. Hot water is cirulated through distribution mains to radiant walls in the suites at full riser pressure, while pressure reducing valves off of the distribution mains lower the hot water pressure to domestic service pressures at plumbing fixtures. Similarly, domestic cold water can be chilled and circulated through the radiant walls for cooling. Three-way valves at the radiant wall can alternately circulate hot water or cold water under thermostatic control.

Abstract: A method and system for the distribution of water in a high rise building is provided using a minimum number of piping risers. The system has a domestic cold water riser, and a domestic hot water supply riser and a return riser. At each serviced floor, a cold water supply main extends from the domestic cold water riser and a hot water supply main extends from the domestic hot water supply riser. On each floor at which riser pressure is higher than domestic use pressures, a valve reduces the pressure of the entire cold water supply main to domestic use pressures. One or more valves at each of one or more suites on the floor reduce the pressure of the hot water to each suite, leaving the hot water supply main for the floor at full riser pressure. Coupling fan-coils with chilled water supply and the full pressure domestic hot water provides an efficient piping system for both environmental controls and domestic hot water use.