Lab Partnering Service Discovery
Use the LPS faceted search filters, or search by keywords, to narrow your results.
Sandia has developed an energy monitoring device that measures energy from liquid flow systems (e.g., solar systems) using a simple technique that senses when the system is running and then estimates the BTU energy production. Current energy meters must be installed into the system to measure how much energy the system is producing or losing. This involves cutting pipes, installing thermal wells, and flow meters, and/or connecting sensors to pump motors in the system. This often requires licensed contractors and many solar systems are too small and the value of the energy they collect is not sufficient to justify a commercially available BTU meter.
The Sandia metering system can be installed on a system without cutting any pipes or connecting to any electrical systems. The invention is completely portable and can be installed without disturbing the system or engaging a contractor or other personnel. The Sandia system is useful for both fixed and variable flow systems and is especially useful for systems in which the first and second conduit segments comprise an inlet to and an outlet of a solar energy system.
The Facility Energy Decision System—or FEDS—Software is a user-friendly, menu-driven, Windows-based software program that provides a comprehensive method for quickly and objectively identifying facility energy improvements that offer maximum life-cycle cost savings.
FEDS Software makes assessments and analyzes energy efficiency in single or multiple buildings. Users can quickly compare energy savings potential across different sites through multiple FEDS runs. It provides an easy-to-use tool for identifying minimum life cycle cost retrofits, determining payback, and enabling users to prioritize options.
Duo Wang and Mark Modera have designed an atomizing nozzle that eliminates clogging. The Berkeley Lab nozzle uses the high velocity gas efflux to create a layer of ambient temperature air around the tube containing the liquid to be atomized. This feature minimizes heat transfer from the gas to the liquid, thus eliminating premature drying. Several other design features also help to eliminate clogs.
The Berkeley Lab nozzle can be fed with heated gas for spray drying or unheated gas for just atomization and can be constructed from standard tube fittings. Hand-tightened installation of the liquid tube makes servicing easy. In addition, the design has been shown to reduce energy use by 80 percent for some applications.
A small appliance developed at ORNL dehumidifies air and then recycles heat to warm water in a water heater. The device circulates cool, dry air in summer and warm air in winter. In addition, the invention can cut the energy required to run a conventional water heater by an estimated 50 per cent.
Conventional electric water heater designs have reached the limit of efficiency. The ORNL technology provides an innovative and highly cost efficient way to channel heat from warm, moist air to a hot water tank. The small appliance is ideal for the mobile homes market, where electric water tanks often stand against an outside wall. Additional ducting could allow a dehumidifier-water heater in one mode to circulate cool, dehumidified air in summer, while heating water in the tank.
In winter, in a second mode, the system could bypass the water tank and circulate the warm, dehumidified air. In this device, a fan draws air across an evaporator to produce cooled and dehumidified air. Heat taken from the air is absorbed by a refrigerant at the evaporator and then pumped to a condenser, where it is used to heat water. When the tank of the water heater is full of hot water, the device switches back to dehumidifier mode.