Topic
Dew point
About: Dew point is a research topic. Over the lifetime, 5234 publications have been published within this topic receiving 52494 citations. The topic is also known as: dew point temperature & dew-point temperature.
Papers published on a yearly basis
1 / 2
Papers
TL;DR: In this paper, the authors examined the mathematical basis and accuracy of the relationship between the dewpoint and relative humidity, and proposed a simple rule of thumb that can be very useful for approximating the conversion for moist air, which does not appear to be widely known by the meteorological community.
Abstract: The relative humidity (RH) and the dewpoint temperature (td) are two widely used indicators of the amount of moisture in air. The exact conversion from RH to td, as well as highly accurate approximations, are too complex to be done easily without the help of a calculator or computer. However, there is a very simple rule of thumb that can be very useful for approximating the conversion for moist air (RH > 50%), which does not appear to be widely known by the meteorological community: td decreases by about 1°C for every 5% decrease in RH (starting at td= t, the dry bulb temperature, when RH = 100%). This article examines the mathematical basis and accuracy of this and other relationships between the dewpoint and relative humidity. Several useful applications of the simple conversion are presented, in particular the computation of the cumulus cloud-base level (or lifting condensation level) as zLCL >> (20 + t/5)(100 – RH), where zLCL is in meters when t is in degrees Celcius and RH in percent. Finally, a his...
1,228 citations
TL;DR: A model for calculating daily microclimate conditions in mountainous terrain is presented and maximum–minimum daily air temperatures, precipitation, and dew point are extrapolated from valley stations.
Abstract: A model for calculating daily microclimate conditions in mountainous terrain is presented. Maximum–minimum daily air temperatures, precipitation, and dew point are extrapolated from valley stations...
641 citations
TL;DR: A metal-organic framework-based water harvesting device that can deliver over 0.25 L of water per kg of adsorbent over a single cycle at relative humidities of 10–40% and at subzero dew points is developed.
Abstract: Water scarcity is a particularly severe challenge in arid and desert climates. While a substantial amount of water is present in the form of vapour in the atmosphere, harvesting this water by state-of-the-art dewing technology can be extremely energy intensive and impractical, particularly when the relative humidity (RH) is low (i.e., below ~40% RH). In contrast, atmospheric water generators that utilise sorbents enable capture of vapour at low RH conditions and can be driven by the abundant source of solar-thermal energy with higher efficiency. Here, we demonstrate an air-cooled sorbent-based atmospheric water harvesting device using the metal−organic framework (MOF)-801 [Zr6O4(OH)4(fumarate)6] operating in an exceptionally arid climate (10–40% RH) and sub-zero dew points (Tempe, Arizona, USA) with a thermal efficiency (solar input to water conversion) of ~14%. We predict that this device delivered over 0.25 L of water per kg of MOF for a single daily cycle.
600 citations
TL;DR: In this paper, an equation for wet-bulb temperature as a function of air temperature and relative humidity at standard sea level pressure was presented as an empirical fit using gene-expression programming.
Abstract: An equation is presented for wet-bulb temperature as a function of air temperature and relative humidity at standard sea level pressure. It was found as an empirical fit using gene-expression programming. This equation is valid for relative humidities between 5% and 99% and for air temperatures between −20° and 50°C, except for situations having both low humidity and cold temperature. Over the valid range, errors in wet-bulb temperature range from −1° to +0.65°C, with mean absolute error of less than 0.3°C.
597 citations
TL;DR: CO( 2) adsorption-desorption cycles and the corresponding mechanisms over amine supported CO(2) adsorbent (TRI-PE-MCM-41) under dry conditions and in the presence of moisture are studied.
Abstract: CO2 adsorption−desorption cycles and the corresponding mechanisms over amine supported CO2 adsorbent (TRI-PE-MCM-41) under dry conditions and in the presence of moisture (20 °C as dew point).
595 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2026 | 2 |
| 2025 | 47 |
| 2024 | 82 |
| 2023 | 219 |
| 2022 | 327 |
| 2021 | 128 |